機器
binding
bond
bonding
clockwork
cog
cogs
cogwheel
cogwheels
concept
conceptual
connect
connection
engineering
gear
gearbox
gearing
gears
idea
indoor
industrial
interlock
interlocked
interlocking
machinery
macro
mechanical
mechanics
mechanism
metal
metaphor
nobody
objects
parts
precision
steel
teamwork
teeth
three
together
transmission
wheels